Health Insurance · intermediate

Critical Illness Insurance

Critical illness cover explained — the lump-sum benefit, how covered illnesses are defined, waiting and survival periods, riders versus standalone policies, the tax deduction for premiums, and illustrative claim scenarios.

8 lessonsFact-checked 8 October 2026
  1. 01What is Critical Illness Insurance — Definition, Coverage & Trigger EventsWhat critical illness insurance is, how its fixed lump sum differs from the reimbursement paid by an indemnity health policy, what counts as a trigger event, and where the cover sits in regulation and tax.
  2. 02Covered Conditions — Heart Attack, Stroke, Cancer, Kidney FailureHow a critical illness policy defines four conditions that appear in many policies' lists — heart attack, stroke, cancer and kidney failure — and why the definition, not the name of the illness, decides a claim.
  3. 03Survival Period & Claim ConditionsThe two time conditions in a critical illness policy — the waiting period, counted from the start of the policy, and the survival period, counted from the diagnosis — and the other conditions that must be met before the benefit is paid.
  4. 04Lump Sum vs Indemnity — How Critical Illness Payouts WorkThe two ways health insurance pays — indemnity, which follows the actual bill, and fixed benefit, which pays the agreed sum — and what the difference means when a person holds more than one policy.
  5. 05Critical Illness Riders vs Standalone PoliciesThe two forms of critical illness cover — a standalone policy and a rider on a life policy — how accelerated and additional riders differ, and the limits IRDAI sets on rider premiums and benefits.
  6. 06Tax Treatment — Premium Deduction (Section 126) and GSTThe income-tax deduction for health insurance premiums under section 126 of the Income-tax Act, 2025 — its limits, its conditions and the tax regime it belongs to — and the GST position on individual health insurance premiums.
  7. 07Claim Scenarios — Illustrative Approvals, Rejections & DisputesHow a critical illness claim is decided against the policy wording, the usual reasons a claim is paid or declined, what the 60-month moratorium does and does not do, and the routes open to a policyholder who disagrees.
  8. 08Choosing the Right Critical Illness Cover — Comparison FrameworkThe points on which critical illness policies differ and that matter when a claim arises — the list and its definitions, the waiting and survival periods, the payout structure, how long cover runs and how the premium changes — and where each is found.

Free learning from the Trustner Group. Trustner Academy is an education initiative of the Trustner Group, whose companies work across insurance broking and investment services, with offices in Bangalore, Guwahati, Kolkata, Hyderabad and Mumbai. Everything here is for learning only — it is not advice, a recommendation or an offer of any product. Scenarios are illustrative. Rules and figures change; check the current regulation, scheme document or policy wording before acting on anything.